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type: MusicGroup
popularity: 10
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4197fa78b3ef69bd5d9dc0a051f48c2a607bd28a5b2afa5eb6673fd831904f09. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2576fce8-bb99-4eaa-947a-a1e9b4acad76.json and https://artists.proofprofile.net/proofs/artist/2576fce8-bb99-4eaa-947a-a1e9b4acad76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
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album: Pierné & Vierne: Quintettes pour piano
  type: MusicAlbum
  date published: 2015-01-13
album: Pierné & Vierne: Quintettes pour piano
  type: MusicAlbum
  date published: 2015-01-15
track: Étude No. 5 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 22)
track: Etude No. 6 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 17)
track: Étude No. 13: Andante (Arr. by Roland Dyens)
track: Étude No. 19: Allegretto (Arr. by Roland Dyens)
track: Étude No. 1: Maestoso (Arr. by Roland Dyens)
track: Étude No. 17: Andante (Arr. by Roland Dyens)
track: Étude No. 20: Marciale (Arr. by Roland Dyens)
track: Rossiniana No. 1, Op. 119, "Sur des thèmes d'opéra de Gioachino Rossini" (Arr. by Roland Dyens)

Étude No. 5 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 22)
type: MusicRecording
duration: PT2M42S
duration ms: 162773
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
isrc code: CAJ720739701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Étude No. 5 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 22)
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Etude No. 6 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 17)
type: MusicRecording
duration: PT2M11S
duration ms: 131840
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
isrc code: CAJ720739702
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09605db79eabf3644bf50785343cb31f7a24c1bcd6cbe5670227315dcf498a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739702.
  date published: 2026-07-06T01:25:57Z
audio: Etude No. 6 (arr. of F. Sor: 24 Very Easy Exercises Op. 35 No. 17)
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  additional property: Tempo (BPM)
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Étude No. 13: Andante (Arr. by Roland Dyens)
type: MusicRecording
duration: PT3M49S
duration ms: 229173
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
isrc code: CAJ720739704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-14T18:13:17Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71669f79972863794f5080aab9195828518da8c3d81024f33728d22260b2477. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739704.
  date published: 2026-07-14T18:13:17Z
audio: Étude No. 13: Andante (Arr. by Roland Dyens)
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  additional property: Tempo (BPM)
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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Étude No. 19: Allegretto (Arr. by Roland Dyens)
type: MusicRecording
duration: PT3M16S
duration ms: 196453
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
isrc code: CAJ720739706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739706
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664168b4186dcdbfb0ac0c58b45301685e73c4307dd004e7b8b66e06b5945602. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739706.
  date published: 2026-07-08T03:22:41Z
audio: Étude No. 19: Allegretto (Arr. by Roland Dyens)
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  additional property: Tempo (BPM)
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Étude No. 1: Maestoso (Arr. by Roland Dyens)
type: MusicRecording
duration: PT1M17S
duration ms: 77800
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
isrc code: CAJ720739707
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Étude No. 1: Maestoso (Arr. by Roland Dyens)
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Étude No. 17: Andante (Arr. by Roland Dyens)
type: MusicRecording
duration: PT4M34S
duration ms: 274173
explicit: false
by artist: Fernando Sor
by artist: Roland Dyens
by artist: Quatuor Arthur. Le Blanc
in album: Sor & Giuliani: Works for Guitar
  type: MusicAlbum
  date published: 2007-05-01
genre: classical
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d73b90f925ac887f1242087fc6c33162ac30c08970b00582e2597a62b8dc4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739705.
  date published: 2026-07-31T02:19:15Z
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Étude No. 20: Marciale (Arr. by Roland Dyens)
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Rossiniana No. 1, Op. 119, "Sur des thèmes d'opéra de Gioachino Rossini" (Arr. by Roland Dyens)
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